Hobbyists can fine tune vehicle handling using Tamiya 42247 Gear Differential Putty made for sealed gear differential systems. It provides a midpoint between light oils and fully locked setups for more precise control of wheel behaviour.
The putty is presented as a roll inside a black plastic case for easy storage. Cut off roughly 3mm lengths and place them into the diff casing. This straightforward method allows quick adjustments while testing on different surfaces.
Reach for the putty when you want improved mid corner stability or to reduce inside wheel spin. It is particularly handy when small changes to diff stiffness make a noticeable difference to lap times or traction feel.
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